Home / 578,838,643.20-868,257,964.80-349,256,131.20

Finding the Fourth Proportional to 578,838,643.20, 868,257,964.80 and 349,256,131.20

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Solution

The fourth proportional to 578,838,643.20, 868,257,964.80 and 349,256,131.20 is: 523,884,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,838,643.20 : 868,257,964.80 = 349,256,131.20 : x
  2. Step 2: Convert to fraction form
    578,838,643.20/868,257,964.80 = 349,256,131.20/x
  3. Step 3: Cross multiply
    578,838,643.20x = 868,257,964.80 × 349,256,131.20
  4. Step 4: Simplify right side
    578,838,643.20x = 303,244,417,669,633,728
  5. Step 5: Solve for x
    x = 303,244,417,669,633,728/578,838,643.20
  6. Step 6: Final answer
    x = 523,884,196.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.